<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form enctype="multipart/form-data" method="post" action="/up">
  文件：<input type="file" name="fileUpload"/>
  <input type="submit" value="上传"/>
</form>

</body>
</html>